CN101645760A - Method for sending uplink scheduling authorization, device and base station - Google Patents
Method for sending uplink scheduling authorization, device and base station Download PDFInfo
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Abstract
The invention discloses a method for sending an uplink scheduling authorization, a device and a base station provided with the device. The method comprises the following steps: setting a new data indicator for indicating new data, wherein the new data indicator occupies one bit; performing first transmission treatment for sending the uplink authorization to a terminal, and in the first transmission treatment, performing plus 1 operation on the new data indicator, and carrying the new data indicator after performing the plus 1 operation, redundancy version information and modulation coding scheme information in the uplink authorization; and under the condition of abnormal first transmission of the new data corresponding to the uplink authorization, using the new data indicator after performing the plus 1 operation as the new data indicator needing the plus 1 operation, and re-performing the first transmission treatment. Through the method, the device and the base station, the terminal can know the information on an MCS adopted in the process of performing uplink data transmission, so that invalid retransmission is avoided and the transmission efficiency and the transmission successrate are improved.
Description
Technical field
The present invention relates to the communications field, particularly, relate to the sending method and the device of uplink scheduling authorization and base station with this device.
Background technology
In the communications field, uplink scheduling is meant on up link, the base station can be by PDCCH (the Physical Downlink Control Channel with the scrambling of the special genus of terminal Radio Network Temporary Identifier on each Transmission Time Interval, Physical Downlink Control Channel abbreviates PDCCH as) be the terminal distribution resource.When terminal can be carried out the down link reception,, need monitor PDCCH in order to obtain to be the uplink transmission resource of its distribution always.Wherein, the PDCCH for the uplink allocation resource is called uplink grant (Uplinkgrant, i.e. UL grant) again.
Comprise Physical Resource Block and Modulation and Coding Scheme (Modulationand coding scheme in the uplink grant, abbreviate MCS as), the redundancy versions (RedundancyVersion of incremental redundancy, abbreviate RV as) and new data indication (New data indicator, abbreviate NDI as) etc. information, be used to indicate the resource of distributing to terminal.
Wherein, MCS is used for the modulation system and the coded system of designation data.
RV decodes after the data that will repeatedly transmit of receiver merge, and in use, available RV has a set, and for example { 0,2,3,1,0,2,3,1,0,,,,, for a certain bag data, the first redundancy versions that uses RV=0 that passes, each of back time re-transmission increases redundancy versions successively,, uses 2,3 successively that is, 1,0,2,3,1,0,,,, the redundancy versions of order.
NDI is used to distinguish new data and data retransmission.When the transmission new data NDI is added 1, NDI is constant during data retransmission.NDI takies 1 bit, so have only 0 and 1 two value.When transmitting the first bag new data, NDI is 0, and when transmitting the second bag new data, NDI is 1; When transmitting the three guarantees new data, NDI is 0, transmits new data at every turn and all so comes to add up 1 successively.And NDI is constant during data retransmission, that is to say, and when retransmitting the first bag new data, no matter be to retransmit for the first time or follow-up the N time retransmits, NDI all remains unchanged, and with first to wrap new data identical, that is, is 0; Similarly, for the re-transmission of above-mentioned second bag new data/three guarantees new data, NDI is 0.
In addition, the transfer of data on the up link is the method for synchronization, adopts uplink authorization to dispatch to the transmission first of data, and its re-transmission can be adaptive, and is also can right and wrong adaptive.When carrying out the self adaptation re-transmission, the base station need reschedule (but not comprising MCS information) with uplink grant, and the resource that comprises in the uplink grant covers previous scheduling resource, and later retransmission also will adopt newly assigned resource.When carrying out the non-self-adapting re-transmission, the resource of primary distribution is carried out uplink before adopting, and does not have uplink grant to indicate.
Based on the above-mentioned transfer of data rule and the transmission means of self adaptation and non-self-adapting, there are the following problems in meeting:
For adaptive mode, as shown in Figure 1:
Benchmark NDI is 0, when new data sends, NDI is added 1, becomes 1.Pass headed by the new data, so RV is 0.Send in the 1st uplink grant of terminal in the base station, comprise MCS mode, the Physical Resource Block that this new data sends and be provided with that NDI is 1, RV is 0.If this uplink grant has been lost, be that terminal does not receive the 1st uplink grant, then terminal is not carried out any transmission on ascending resource, correspondingly, the base station is detected on ascending resource less than any content, initiates the 2nd uplink grant subsequently.In the 2nd uplink grant, owing to be to retransmit,, still be 1 so NDI remains unchanged, RV is according to { 0,2,3,1,0,2,3,1,0,,,, order increases to and comprises the Physical Resource Block that sends corresponding to the 2nd upstream data in 2, the 2 uplink grant, but do not have MCS information.Terminal receives the 2nd uplink grant, when upstream data sends, because disappearance MCS information (not having MCS information in the 2nd mandate), which kind of MCS mode will be terminal can't know with sends this new data, causes terminal to send or sends with wrong MCS mode.Equally, the base station is still detected less than any content on ascending resource or is detected wrong content, initiates the 3rd uplink grant subsequently.In the 3rd uplink grant, owing to be to retransmit, so NDI is constant, still is 1, RV is according to { 0,2,3,1,0,2,3,1,0,,,, order increases to the Physical Resource Block that comprises in 3, the 3 uplink grant that corresponding the 3rd upstream data sends, but do not have MCS information.The 3rd and follow-up up link will occur and the 2nd uplink grant similar problem, cause the most at last can't carrying out transfer of data or data transmission fails between terminal and the base station.
For the non-self-adapting mode, as shown in Figure 2:
Benchmark NDI is 0, when new data sends, NDI is added 1, becomes 1.Pass headed by the new data, so RV is 0.Issue in the 1st uplink grant of terminal in the base station, comprise MCS mode, the Physical Resource Block that this new data sends and be provided with that NDI is 1, RV is 0.If this uplink grant has been lost, that is, terminal does not receive the 1st uplink grant, and then terminal does not send on ascending resource, and correspondingly, the base station is detected less than any content on ascending resource.The 2nd uplink grant initiated in the base station subsequently.In the 2nd uplink grant, owing to be to retransmit,, still be 1 so NDI remains unchanged, RV is according to { 0,2,3,1,0,2,3,1,0,,,, order increases to and comprises the Physical Resource Block that sends corresponding to the 2nd upstream data in 2, the 2 uplink grant, but do not have MCS information.Terminal receives the 2nd uplink grant, when upstream data sends, because disappearance MCS information (not having MCS information in the 2nd mandate), which kind of MCS mode will be terminal can't know with sends this new data, causes terminal to send or sends with wrong MCS mode.Equally, the base station is still detected less than any content on ascending resource or is detected wrong content.Owing to adopt non-self-adapting re-transmission mode, therefore when later retransmission, utilize the resource that retransmits distribution for the first time to carry out uplink, so there is not uplink grant to indicate subsequently.That is to say that all upstream datas subsequently send, terminal all can't be known which kind of MCS of use, and this will cause can't carrying out transfer of data or data transmission fails between terminal and the base station.
Summary of the invention
In view of exist in the correlation technique after head passes data exception, owing to can not carry MCS in the uplink scheduling authorization during later retransmission, make terminal to know and use which kind of MCS to carry out transfer of data, thereby cause to carry out the problem of transfer of data or data transmission fails between terminal and the base station and propose the present invention, for this reason, the present invention aims to provide a kind of sending method and device of uplink grant and the base station that comprises this device.
According to an aspect of the present invention, a kind of sending method of uplink scheduling authorization is provided, and this method is used for the base station and sends uplink scheduling authorization to terminal, comprising: the new data indicator that is provided for indicating new data, wherein, new data indicator takies a bit; The head that carry out to terminal transmission uplink grant the base station passes processing, pass in the processing at head, execution adds 1 operation to new data indicator, and carries new data indicator, redundancy version information, Modulation and Coding Scheme information after execution adds 1 operation in uplink grant; Pass under the unusual situation in that the new data of uplink grant correspondence is first, execution is added new data indicator after 1 operation as need adding the new data indicator of 1 operation to its execution, and re-execute first the biography and handle.
Preferably, the above-mentioned first abnormal conditions that pass comprise one of following: one, uplink grant is lost, and terminal is not carried out the uplink of new data, causes the base station not receive new data; Two, terminal receives the new data that sends after the uplink grant and loses, and causes the base station not receive new data.
The method of foregoing description also comprises: the base station receives the upstream data of self terminal; Owing to can not obtain under the situation of new data the decoded in error of upstream data, the retransmission process that sends uplink grant to terminal is carried out in the base station.
In retransmission process: in uplink grant, carry the new data indicator after the first execution that passes in handling adds 1 operation, new redundancy version information.
Preferably, come in above-mentioned reception before the upstream data of self terminal, this method also comprises: terminal receives uplink grant; Terminal is carried out the transmitting uplink data of new data with the indicated Modulation and Coding Scheme of Modulation and Coding Scheme information on the uplink resource of uplink grant appointment.
According to another aspect of the invention, provide a kind of dispensing device of uplink scheduling authorization, this device comprises: module is set, be provided for indicating the new data indicator of new data, and new data indicator is provided with initial value, wherein, new data indicator takies a bit; Operational module is used for new data indicator carried out and adds 1 operation; First transmission module is used for sending uplink grant to terminal, and carries new data indicator, redundancy version information, Modulation and Coding Scheme information after the operational module execution adds 1 operation in uplink grant; Receiver module is used to receive the upstream data of self terminal; Scheduler module is used for when receiver module does not receive upstream data, call operation and first transmission module.
Preferably, the above-mentioned receiver module situation that do not receive upstream data specifically comprises one of following: one, uplink grant is lost, and terminal is not carried out the uplink of new data, causes receiver module not receive upstream data; Two, terminal receives the new data that sends after the uplink grant and loses, and causes receiver module not receive upstream data.
Preferably, when being scheduled module invokes, the aforesaid operations module with execution add 1 the operation after new data indicator as current need to its execution add 1 the operation new data indicator.
Said apparatus also comprises: decoder module is used for the upstream data that receiver module receives is decoded, to obtain the new data that terminal sends; Retransmission module is used for sending uplink grant to terminal, and carries the new data indicator after execution that first transmission module uses adds 1 operation, new redundancy version information in uplink grant; Scheduler module also is used for calling retransmission module under the situation of decoder module decoding failure.
In accordance with a further aspect of the present invention, provide a kind of base station, this base station comprises the device of above each description.
By the present invention, carry out head once more after passing unusually by head and pass operation at new data, correspondingly carrying MCS information in the uplink grant, make terminal can know the MCS information that is adopted when carrying out transmitting uplink data, than prior art, invalid re-transmission be can avoid, efficiency of transmission and transmission success rate improved.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the uplink scheduling authorization process of transmitting under the adaptive mode of prior art;
During Fig. 2 according to the schematic diagram of the uplink scheduling authorization process of transmitting under the non-self-adapting mode of prior art;
Fig. 3 is the structured flowchart according to the uplink scheduling authorization dispensing device of the embodiment of the invention;
Fig. 4 is the flow chart according to the uplink scheduling authorization sending method of the embodiment of the invention;
Fig. 5 is a schematic diagram of using the uplink scheduling authorization process of transmitting under the adaptive mode of the present invention;
Fig. 6 is a schematic diagram of using the uplink scheduling authorization process of transmitting under the non-self-adapting mode of the present invention.
Embodiment
Functional overview
As mentioned above, under present uplink scheduling authorization transmit mechanism, after head passes data exception, can not carry MCS in the uplink scheduling authorization during later retransmission, make terminal to know and use which kind of MCS to carry out the transfer of data new data.At this problem, the invention provides a kind of transmit mechanism of new uplink scheduling authorization, its judge first pass data exception after, NDI carried out carries out first biography second time (NDI remains unchanged in the prior art) once more after adding 1 operation.Need to prove that the new data that relates among the present invention is meant the data that comprise new original contents, the original contents difference of carrying between the different new datas.Like this,, be actually the data that send same data content with the new data process of transmitting of different rounds, but on logical meaning, repeatedly the data of the same data content of this of Fa Songing are all thought new data when the transmission of each round by means of the present invention.In addition, NDI carried out add 1 operation and carry out the first data that pass second time again, also pass data exception with regard to the head that means last round of time after, no longer carry out last round of time re-transmission, and directly carry out the first biography of data of next round.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
In order to realize above-mentioned uplink scheduling authorization transmit mechanism, at first provide a kind of dispensing device of uplink scheduling authorization.Fig. 3 has provided the structured flowchart of this device, and as shown in Figure 3, this device comprises: module 30, operational module 32, first transmission module 34, receiver module 36, scheduler module 38 are set.Below further describe the operation of each module.
The new data indicator (NDI takies 1 bit) that module 30 is provided for indicating new data is set, and NDI is provided with initial value as benchmark NDI, can be set to 0, also can be set to 1.
Operational module 32 is connected to module 30 is set, is used for NDI carried out adding 1 operation, and can be benchmark NDI as the NDI of operand, also can be through adding the middle NDI after 1 operation.
First transmission module 34 is connected to operational module 32, is used for sending uplink grant to terminal, and carries operational module 32 and carry out NDI, redundancy versions (RV) information, Modulation and Coding Scheme (MCS) information that adds after 1 operation in uplink grant.
Receiver module 36 is used to receive the upstream data of self terminal.When the first biography of appearance is unusual, receiver module can't receive upstream data, so-called first the biography unusually, and specifically can be following situation: situation one: uplink grant be lost, terminal is not carried out the uplink of new data, causes the base station not receive upstream data; Situation two: terminal receives the new data that sends after the uplink grant and loses, and causes the base station not receive upstream data.That is to say, pass under the unusual situation that the operation that the base station can't obtain this consequence of new data and base station has nothing to do,, then do not belong to the first unusual situation that passes if cause to obtain new data because of the decoding error of base station at head.
Scheduler module 38 is connected to receiver module 36, first transmission module 34, operational module 32, is used for when receiver module 36 does not receive upstream data call operation module 32 and first transmission module 34.That is to say, pass when unusual that operational module 32 will be carried out NDI and add 1 operation, need to prove that the NDI here carried out during first the biography in last time to add 1 and operate NDI afterwards at head, but not initial NDI; For first transmission module 34, it will adopt first the biography and follow-up first biography second time of carrying out new data with the processing mode that first biography is identical for the first time.
For the dispensing device of this uplink scheduling authorization, usually, need decode to the data of coming self terminal that receive.Therefore, preferably, as shown in Figure 3, this device also comprises a decoder module 31, and it is used for the upstream data that receiver module 36 receives is decoded, to obtain the data content that terminal sends, that is, and new data; The operation of decoder module comprises decodes successfully and two kinds of situations of decoding failure, and when decoding successfully, device can obtain the new data that terminal sends, and then can not obtain new data when the decoding failure, at this moment just relates to retransmit issue.Based on this, device according to the embodiment of the invention also comprises a retransmission module 33, be used for sending uplink grant to terminal, and in uplink grant, carry the NDI after execution that first transmission module uses adds 1 operation, new RV information, promptly, when retransmitting, do not relate to 1 operation that adds to NDI, the NDI that retransmits is identical with the last first NDI that passes, particularly, retransmission module can move under the scheduling of scheduler module 38, that is to say, scheduler module 38 also is used for calling retransmission module 33 under the situation of decoder module 31 decoding failure.
The device of the uplink scheduling authorization that provides by the foregoing description, be used for passing and call operational module and first transmission module under the unusual situation and carry out first the biography and the follow-up first operation that the passes second time by being provided with one at head, make terminal to obtain and carry out the employed MSC of transmitting uplink data, and follow-uply can carry out transmitting uplink data according to this MSC information, than prior art, promptly avoid invalid re-transmission to improve efficiency of transmission, also improved the transmission success rate.
According to the embodiment of the invention, a kind of sending method of uplink grant also is provided, be used for the base station and send uplink grant to terminal.Base station used herein has preferably comprised the base station of above-mentioned uplink authorization scheduling transmitting device.This method roughly can be following processing realize: judge the head of new data when the base station and pass (send the first time of new data) when unusual, NDI is added 1, carry out first biography second time of new data, from in logic will, terminal can be the first new data that passes for the second time as " new data ", but in fact, the data content of twice transmission is identical, is same data.Fig. 4 has provided the flow chart of this method, as shown in Figure 4, comprises following processing:
Step S402 is provided for indicating the NDI of new data, and this NDI takies a bit, and value is 0 or 1, can be set to 0 as benchmark NDI by NDI, certainly, is set to 1 and also is fine, and the present invention is not limited in this respect; This step can realize by the above-mentioned module that is provided with.
Step S404, the head that carry out to terminal transmission uplink grant the base station passes processing, pass processing at head, execution (for example adds 1 operation to benchmark NDI, can realize by above-mentioned operational module), and in uplink grant, carry and carry out NDI, RV information, the MCS information add after 1 operation, also need to carry the Physical Resource Block that sends corresponding to this secondary data in addition; In this step, if benchmark NDI is 0, the NDI that then carries here is 1.
Step S406, new data head in the uplink grant correspondence passes under the unusual situation, to carry out the NDI add after 1 operation among the step S404 as benchmark NDI, that is, need add the NDI of 1 operation to its execution, and turn back to step S404, re-executing first the biography handles, that is to say, when execution in step S404 once more, be to carry out on the basis of the NDI that obtains during execution in step S404 in the first time to add 1 operation again.
Wherein, the first biography first time that can be called for the first time new data during execution in step S404, second this time first biography that is called new data when carrying out for the second time, by that analogy, when for the first time first biography can be regarded as benchmark NDI is carried out first uplink grant that adds after 1 operation, in fact, when head passes under the unusual situation once more execution in step S404, the content of " new data " that the first biography of each time sends is identical, promptly, the data object of operation is same data, and just terminal can be treated the second time and the follow-up first data that pass as " new data ".As can be seen, in the present invention, pass unusual back repeated execution of steps S404 by head at new data, that is, NDI is added 1 head that carries out new data once more pass, till not having first biography unusual, make terminal can obtain correct MCS and carry out above-mentioned data transmission, avoided invalid re-transmission.
Pass unusually for above-mentioned head, can comprise following two kinds of situations at least:
(1) uplink grant is lost, and terminal is not carried out the uplink of new data, causes the base station not receive new data;
(2) terminal receives the new data that sends after the uplink grant and loses, and causes the base station not receive new data.
For the RV information that relates in the foregoing description, available RV has a RV set, for example, and { 0,2,3,1,0,2,3,1,0,,, carrying out the first time during first the biography, as basic version, carrying out second time during first biography with RV=0, still use the version of RV=0.
As can be seen, no matter be which kind of first biography unusually, all irrelevant with the decode operation (the upstream data decoding that receives is obtained its data content) of base station, if cause receiving new data, do not belong to head and pass unusual situation because of decode operation.For cause the base station can not receive the situation of new data because of the decode operation mistake, similar with present treatment mechanism, retransmission operation will be carried out in the base station.When retransmitting, the NDI and the RV information (no MSC information) of correspondence when carrying corresponding last first biography of this re-transmission in uplink grant are still with { 0,2,3,1,0,2,3,1,0,,,, } RV set be example, if use during first the biography the time RV=0 redundancy versions, retransmit mode for self adaptation, each of back time re-transmission uses 2,3,1 successively, 0,2,3,1,0,,, the redundancy versions of order.
Below in conjunction with adaptive mode and non-self-adapting mode uplink grant transmit mechanism of the present invention is described.
Embodiment one: adaptive mode
Suppose that benchmark NDI is 0, the content that sends new data is A, and wherein, Fig. 5 has provided the schematic diagram of the uplink grant process of transmitting among this embodiment.
The head first time of new data A passes.The base station sends uplink grant, just first uplink grant among Fig. 5.In this uplink grant, it is 1 that NDI adds 1, and RV is 0, and MCS is 4.First uplink grant is lost, and perhaps terminal receives the upstream data that sends after the uplink grant and loses, and causes the base station not receive any upstream data.
The head second time of new data A passes.The first biography unusually judged in the base station, NDI is added 1, carry out first biography second time of new data, just the second time of new data A, head passed, as can be seen, for the first time first pass and the first for the second time operating data that passes to as if same data, be A, just refer to last first pass " new data " that send carried out head again and pass transmission.The base station sends uplink grant, just the 2nd uplink grant among Fig. 5.In this uplink grant, NDI is 0 (because a last benchmark is 1, being 0 so add 1), and RV is 0, and carrying MCS information is 5.Terminal receives second uplink grant, and knows that CS information is 5.
Subsequently, terminal is 5 the mode upstream data of modulating and encode with MCS on the uplink resource of appointment, carries out the transmission of upstream data, and data content is A.
The re-transmission of new data A.When the base station can't obtain new data A owing to the decode operation failure, the base station required terminal to carry out the re-transmission of new data A, sends the 3rd uplink grant shown in Fig. 5.In this uplink grant, owing to be to retransmit, so NDI remains unchanged, and still is 0, and it is 2 that RV increases cyclic redundancy, and does not carry MCS information in this uplink grant.
Subsequently, terminal is on the uplink resource of appointment, and continuing to pass definite MCS with head is 5 the mode upstream data of modulating and encode, and uses the redundancy versions of RV=2 to carry out the transmission of upstream data.Data content is A.
Embodiment two: the non-self-adapting mode
Suppose that benchmark NDI is 0, sending the interior of new data is B.Fig. 6 has provided the schematic diagram of implementation procedure of the present invention in this example.
The head first time of new data B passes.The base station sends uplink grant, just first uplink grant among Fig. 6.In this uplink grant, it is 1 that NDI adds 1, and RV is 0, and MCS is 4.Suppose that first uplink grant is lost or terminal receives the upstream data that sends after the uplink grant and loses, cause the base station not receive any upstream data.
The head second time of new data B passes.The base station adds 1 with NDI, carries out first biography second time of new data, and just the second time of new data B, head passed.The new data of head biography is " next new data " logically for the second time, but its content is consistent with " new data " content that last first biography sends, and operating data is B to liking same data.The base station sends uplink grant, just second uplink grant among Fig. 6.In this uplink grant, it is 0 (because a last benchmark NDI is 1, so be 0 after adding 1) that NDI adds 1, and RV is 0, and carrying MCS information is 5.Second uplink grant received by terminal, and obtaining MCS information is 5.
Subsequently, terminal is 5 the mode upstream data of modulating and encode with MCS on the uplink resource of appointment, carries out the transmission of a series of upstream data, and data content is B.
If the base station is because decode operation is failed and can't be obtained new data A, and then the base station requires terminal to carry out the re-transmission of new data A, the resource of primary distribution was carried out uplink before this moment, terminal adopted, and the base station no longer sends uplink grant and indicates.
Certainly, expect other implementations of the present invention easily, as long as realize allowing terminal know the effect of carrying out the employed MCS of transmitting uplink data, for example, and also can be by existing protocol is changed, make no matter first pass or all a little MCS of re-transmission realizes.
By the foregoing description as can be seen,, not only can allow terminal know and carry out the MSC that transfer of data adopted, can also avoid invalid re-transmission, optimize transmission course by means of the present invention.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the sending method of a uplink scheduling authorization is used for the base station and sends uplink scheduling authorization to terminal, it is characterized in that, described method comprises:
Be provided for indicating the new data indicator of new data, wherein, described new data indicator takies a bit;
The head that carry out to terminal transmission uplink grant the base station passes processing, described first the biography in the processing, execution adds 1 operation to new data indicator, and carries new data indicator, redundancy version information, Modulation and Coding Scheme information after execution adds 1 operation in described uplink grant;
Pass under the unusual situation in that the new data of described uplink grant correspondence is first, described execution is added new data indicator after 1 operation as need adding the new data indicator of 1 operation to its execution, and re-execute described first the biography and handle.
2. method according to claim 1 is characterized in that, described first pass comprise unusually one of following:
Described uplink grant is lost, and described terminal is not carried out the uplink of described new data, causes described base station not receive described new data;
Described terminal receives the described new data that sends after the described uplink grant and loses, and causes described base station not receive described new data.
3. method according to claim 1 and 2 is characterized in that, also comprises:
Described base station receives the upstream data from described terminal;
Owing to can not obtain under the situation of described new data the decoded in error of described upstream data, the retransmission process that sends uplink grant to described terminal is carried out in described base station.
4. method according to claim 3 is characterized in that, in described retransmission process:
In described uplink grant, carry the new data indicator after the described first described execution that passes in handling adds 1 operation, new redundancy version information.
5. method according to claim 3 is characterized in that, before the upstream data that receives from described terminal, described method also comprises:
Described terminal receives described uplink grant;
Described terminal is carried out the transmitting uplink data of described new data with the indicated Modulation and Coding Scheme of described Modulation and Coding Scheme information on the uplink resource of described uplink grant appointment.
6. the dispensing device of a uplink scheduling authorization is characterized in that, comprising:
Module is set, is provided for indicating the new data indicator of new data, and described new data indicator is provided with initial value, wherein, described new data indicator takies a bit;
Operational module is used for new data indicator carried out and adds 1 operation;
First transmission module is used for sending uplink grant to terminal, and carries new data indicator, redundancy version information, Modulation and Coding Scheme information after described operational module execution adds 1 operation in described uplink grant;
Receiver module is used to receive the upstream data of self terminal;
Scheduler module is used for when described receiver module does not receive described upstream data, calls described operation and described first transmission module.
7. device according to claim 6 is characterized in that, described receiver module does not receive described upstream data and specifically comprises one of following:
Described uplink grant is lost, and described terminal is not carried out the uplink of described new data, causes described receiver module not receive upstream data;
Described terminal receives the described new data that sends after the described uplink grant and loses, and causes described receiver module not receive upstream data.
8. device according to claim 6 is characterized in that, when being called by described scheduler module, described operational module with described execution add 1 the operation after new data indicator as current need to its execution add 1 the operation new data indicator.
9. device according to claim 6 is characterized in that, also comprises:
Decoder module is used for the described upstream data that described receiver module receives is decoded, to obtain the new data that terminal sends;
Retransmission module is used for sending uplink grant to terminal, and carries the new data indicator after described execution that described first transmission module uses adds 1 operation, new redundancy version information in described uplink grant;
Described scheduler module also is used for calling described retransmission module under the situation of described decoder module decoding failure.
10. a base station comprises according to each described device in the claim 6 to 9.
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| CN2008101296661A CN101645760B (en) | 2008-08-05 | 2008-08-05 | Method for sending uplink scheduling authorization, device and base station |
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| CN2008101296661A CN101645760B (en) | 2008-08-05 | 2008-08-05 | Method for sending uplink scheduling authorization, device and base station |
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